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Texas Mumps Outbreak Continues to Grow

Texas’ worst mumps outbreak in years grows with new cases in Dallas area

DALLAS NEWS: The number of mumps cases in North Texas has surpassed 50 as an outbreak in Johnson County has grown and cases have been found in Dallas, Collin, Denton and Tarrant counties.

Dallas County’s Department of Health and Human Services said in a release Tuesday that 48 cases of mumps have been diagnosed in Johnson County in the past two weeks.

Most of the cases there are school-age children from Cleburne and Keene. Health officials said last week that they had traced the virus to an outbreak in Arkansas, where several children from Keene had visited recently.

In Dallas County, eight adults have been infected with mumps.

Six of the cases were related to a party Oct. 29 in the 75219 ZIP code, officials said, and the other two were related to out-of-state travel or visitors.

The entire state of Texas hasn’t reported more than 20 cases of mumps in a year since 2011.

Dr. Elvin Adams, Johnson County’s public-health official, told the Fort Worth Star-Telegram that he doesn’t think the virus will infect many more people there.

“I think we’ve peaked,” he said, adding that it’s likely more cases will be diagnosed because of the disease’s 16-to-18-day incubation period.

Mumps, which is spread through the saliva or mucus of an infected person, is known for its symptoms of puffy cheeks and a swollen jaw and may be accompanied by a fever, aches and fatigue. Some people may remain asymptomatic.

There is no treatment for mumps, but most people recover completely in a few weeks.

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Arkansas Mumps Update: Over 1,500 Cases

The following report published on November 22, 2016,  from the Arkansas Department of Health outlines the ever growing number cases of mumps in northwest Arkansas that has now moved to two counties in central Arkansas and an additional county in southwest Arkansas.  In early September it was reported that 12 students in Springdale had been confirmed with mumps, the first mumps outbreak Arkansas has had since 2010 when there were five cases.  Since early September the number has swelled to over 1,500 cases.

CURRENT CASE COUNT:

The ADH will now report all suspected and lab confirmed cases of mumps as part of the total case count.

Total Cases Under Investigation: 1,558*

*This is an active outbreak. Mumps case counts are provisional and include cases that are currently being investigated. Because this number is provisional, the numbers reported may occasionally decrease if lab tests are negative for mumps.

Throughout this outbreak, 90% to 95% of school-aged children and 30% to 40% of adults involved in the outbreak have been fully immunized. The vaccine is not perfect. Two doses of the MMR shot are about 88% effective at preventing the mumps. That means that if you have 100 people who are fully vaccinated, 88 of them will be fully protected. The remaining 12 will still be vulnerable to mumps. If it were not for the vaccine, however, we would be seeing many, many more cases of the mumps. Also, we have only seen a few cases with complications, like swelling of the brain or testicles. Normally, we would expect to see many more persons with complications. This tells us that even though some vaccinated individuals are still getting the mumps, they are experiencing mild disease. The vaccine remains the best protection we have against the mumps.

Updated 11/22/16  12:30 p.m.
Mumps Update Report
Mumps Report Q&A

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